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Class Information
Number: 33/520
Name: Geometrical instruments > Gauge > Center, point, distance between centers, or centerline location
Description: Subject matter for a single object wherein the contact member locates or checks (a) the center of a hole, (b) a point on a surface, (c) the center of an arc, (d) the distance between hole centers or (e) the location of a center line.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8690887 Method and system for identification of a center of a vertebral disc space and corresponding central axis of a spinal column Apr. 8, 2014
8635783 Surface measurement instrument and method Jan. 28, 2014
8601703 Workpiece centering apparatus and workpiece centering method Dec. 10, 2013
8474149 Concentricity test device Jul. 2, 2013
8468706 Test device for testing distance between centers of two through holes Jun. 25, 2013
8443526 Robot compliance device May. 21, 2013
8413346 Device for centering an air inlet structure on a central structure of a nacelle Apr. 9, 2013
8296962 System and auto-alignment method for determining position using a discrete contact probe Oct. 30, 2012
8256127 Detecting apparatus Sep. 4, 2012
8225522 Measuring device for determining the shortest distance between features in a structure Jul. 24, 2012
8083444 Method and apparatus for machining work pieces Dec. 27, 2011
8011110 Centering mechanism Sep. 6, 2011
7963045 Detection device for detecting distance between centers of two through holes Jun. 21, 2011
7841099 Device forming a sight-vane for three-dimensional measuring machine Nov. 30, 2010
7770296 Optical system and method of centering a tree within a tree spade Aug. 10, 2010
7748136 Remote center compliance device with measuring sensor Jul. 6, 2010
7712228 Method and a device for effecting automatic centering of an annular workpiece on a rotating surface May. 11, 2010
7703215 Flange alignment tool Apr. 27, 2010
7694427 Pipe fitting wireform for measuring linear distance and method Apr. 13, 2010
7690129 Easy centering hanging level Apr. 6, 2010
7581331 Calibration device for nozzle and calibration method for nozzle Sep. 1, 2009
7497026 Method and system for detection of wafer centering in a track lithography tool Mar. 3, 2009
7493231 Process for determining the actual position of a rotation axis of a transportation mechanism Feb. 17, 2009
7469483 Precision geometric device Dec. 30, 2008
7426789 Universal measuring apparatus and associated methods Sep. 23, 2008
7421799 Remote center compliance device with one elastic body Sep. 9, 2008
7421797 Cabinet partition positioner Sep. 9, 2008
7415774 Method and arrangement for measuring the position of a circular object Aug. 26, 2008
7412777 Method and apparatus for calibrating spherical objects using a computer system Aug. 19, 2008
7350309 Extendable spacer device Apr. 1, 2008
7329076 Hole location gauges and methods Feb. 12, 2008
7234244 Method and apparatus for measuring the position of an end head of a roll Jun. 26, 2007
7216438 One piece centering ruler May. 15, 2007
7191537 Method and apparatus for locating the center of a circle Mar. 20, 2007
7162808 Precision circle center finder and multifunctional construction trade tool Jan. 16, 2007
7082694 Center point locator device Aug. 1, 2006
6994002 End prep tool and tool centering and mounting system for use therewith Feb. 7, 2006
6880258 Digital inclinometer and related methods Apr. 19, 2005
6854194 Wheel centering adaptor with protective liner and wear indicator Feb. 15, 2005
6834438 Tile template Dec. 28, 2004
6823600 Adjustable fit laser-projecting reference tool Nov. 30, 2004
6813843 Tool alignment indicator apparatus and method Nov. 9, 2004
6804894 Parallel rule Oct. 19, 2004
6792689 Remote center compliance device Sep. 21, 2004
6760976 Method for active wafer centering using a single sensor Jul. 13, 2004
6754971 Centering device for flat components, especially glass panels Jun. 29, 2004
6718646 Self-centering device for supporting heads for checking the wheel attitude of motor vehicles in general Apr. 13, 2004
6708419 Self-centering device for supporting heads or sensors for checking the attitude of vehicle wheels Mar. 23, 2004
6647351 Method of detecting the position of an inner surface of a workpiece on a machine tool, and machine tool implementing such a method Nov. 11, 2003
6615503 Calibration software for surface reconstruction of small objects Sep. 9, 2003

1 2 3 4 5

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